Approximately 4 hours.
About 45 min with no traffic.
5 hours, 6 minutes
how long would it take to drive from san antonio, Texas to Boston, Massachusetts
It's a little under a 4 hour drive.
I don't understand what "at" is.
2-4 hours
It is 277.70 miles according to MapQuest.
4 hours
Google Maps estimates the driving time as 1 hour and 12 minutes.
About 2 hours 15 minutes
1 and half hours - 2 hours